STATE OF WISCONSIN INVESTMENT BOARD

Position in ARQ — Arq, Inc.

CIK 854157 MADISON, WI

Position in ARQ

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$36,694

-$38,401 QoQ

Shares Held

14,390

-37.3% QoQ

Ownership

0.033%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#59

of 99 holders

Holding Since

Jun 2020

3 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $23,382,261 across 5 Pollution & Treatment Controls names. ARQ ranks #5 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	131,050	$11,621,514
2	ZWS	Zurn Elkay Water Solutions Corp	188,252	$9,512,373
3	CECO	Ceco Environmental Corp	22,535	$2,044,825
4	PCT	PureCycle Technologies, Inc.	20,574	$166,855
5	ARQ	Arq, Inc. This page	14,390	$36,694

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$36,694	14,390	-37.3%	Shares	Sole	2026-08-14
2025-12-31	$75,095	22,965	+71.4%	Shares	Sole	2026-02-17
2020-06-30	$64,990	13,400	—	Shares	Sole	2020-08-12
No filing history on record for this holder in this stock.